TurboTax does not support tax years prior to 2021.
It is to late to file for the 2020 or 2021 stimulus payments. You had to file a 2021 tax return for the 2021 stimulus on or before April 15, 2025.
Check your IRS account to see if the stimulus payment was sent - https://www.irs.gov/payments/online-account-for-individuals
You can get a free transcript of a tax return from the IRS - https://www.irs.gov/individuals/get-transcript
For a fee of $30 you can get a complete federal tax return to include copies of W-2's, if you mailed the tax return and included a paper W-2, from the IRS by completing Form 4506 - http://www.irs.gov/pub/irs-pdf/f4506.pdf
It is too late for you to get the stimulus money. Those checks were issued for tax years 2020 and 2021; the deadlines have passed to file for the recovery rebate credits for those amounts on returns for 2020 or 2021.
As for getting caught up on the back tax returns you mention --- TurboTax provides software for past years going as far back as 2021-- no earlier years. It is too late to get a refund for 2021 or any of those earlier tax years, but if you owe tax due, it is owed with late filing penalties and interest.
You can use paper forms to prepare those past years by hand; there might be some other tax software companies that will still let you prepare returns for 2017 up to the current year. Or you could seek local paid tax help.
Do you even have all of the documents you will need to enter and show your income—like your W-2’s and any 1099’s?
To use TurboTax for some of the returns:
Each tax year has to be filed separately using the forms for the specific tax year. They cannot be combined in any way--do not even put them in the same envelope when you mail them. Software for past years is available back to 2021. Any earlier years can only be prepared on paper forms by hand--and those refunds have been forfeited now.
You cannot change the tax year. The current online program is for 2024 only. Only a 2024 return can be prepared online and only a 2024 return can be e-filed.
Online preparation and e-filing for 2021, 2022, and 2023 is permanently closed.
Note: The desktop software you need to prepare the prior year return must be installed/downloaded to a full PC or Mac. It cannot be used on a mobile device.
To file a return for a prior tax year
If you need to prepare a return for 2021, 2022, or 2023 you can purchase and download desktop software to do it, then print, sign, and mail the return(s)
https://turbotax.intuit.com/personal-taxes/past-years-products/
You may also want to explore purchasing the software from various retailers such as Amazon, Costco, Best Buy, Walmart, Sam’s, etc.
Remember to prepare your state return as well—if you live in a state that has a state income tax.
When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s. Use a mailing service that will track it, such as certified mail so you will know the IRS/state received the return.
Federal and state returns must be in separate envelopes and they are mailed to different addresses. Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.
If H&R Block said they filed your tax returns, you have to go back to H&R Block for help. TurboTax cannot help you with a problem with H&R Block.
You said "l can't find it." It's not clear what you can't find. If you need copies of tax returns that H&R Block filed for you, you should be able to get them from H&R Block. TurboTax cannot get copies of tax returns that you filed with another company.
If you have further questions, please use proper capitalization and punctuation. It's hard to understand your question when we can't tell where the sentences begin and end.